| abind | Combine multi-dimensional arrays |
| acorn | Return a corner of an array object (like head) |
| acorn.default | Return a corner of an array object (like head) |
| adrop | Drop dimensions of an array object |
| adrop.default | Drop dimensions of an array object |
| afill | Fill an array with subarrays |
| afill<- | Fill an array with subarrays |
| afill<-.default | Fill an array with subarrays |
| ahead | Return a corner of an array object (like head) |
| asub | Arbitrary subsetting of array-like objects at specified indices |
| asub.default | Arbitrary subsetting of array-like objects at specified indices |